WAS - HEL

$224 Find Cheap Flights from Washington, D.C. to Helsinki - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Helsinki departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Helsinki

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Helsinki.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Helsinki.
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Everything you should know

Cheapest round-trip
$483
Typical prices: $1,082-$600
Icelandair
Sat 11/7Fri 11/13
BWI - HEL • 1 stop
Cheapest one-way
$224
Icelandair
Wed 11/11
IAD - HEL • 1 stop
Top airlines
Cheapest • from $483 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Helsinki. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $384 (round-trip)
Shortest trip • 10h 15m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 11% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Helsinki (WAS-HEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Helsinki that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Helsinki

Sat, Nov 7 - Fri, Nov 13
Icelandair Logo
7:40 pm - 12:55 pm
BWI
-
HEL
10h 15m
1 stop
Icelandair Logo
1:55 pm - 6:40 pm
HEL
-
BWI
11h 45m
1 stop
$483Icelandair
Wed, Oct 28 - Sat, Nov 7
Icelandair Logo
8:40 pm - 12:55 pm
BWI
-
HEL
10h 15m
1 stop
Icelandair Logo
1:55 pm - 6:40 pm
HEL
-
BWI
11h 45m
1 stop
$502Icelandair
Thu, Oct 29 - Tue, Nov 3
Icelandair Logo
8:40 pm - 12:55 pm
BWI
-
HEL
10h 15m
1 stop
Icelandair Logo
1:55 pm - 6:40 pm
HEL
-
BWI
11h 45m
1 stop
$508Icelandair
Sun, Aug 23 - Tue, Sep 1
Icelandair Logo
11:20 pm - 10:30 pm
BWI
-
HEL
16h 10m
1 stop
Icelandair Logo
3:00 pm - 7:25 pm
HEL
-
BWI
11h 25m
1 stop
$523Icelandair
Wed, Sep 9 - Tue, Sep 15
Finnair Logo
6:23 pm - 2:00 pm
DCA
-
HEL
12h 37m
1 stop
Finnair Logo
5:15 pm - 11:10 pm
HEL
-
DCA
12h 55m
1 stop
$771Finnair
Sun, Nov 22 - Sat, Nov 28
Delta Logo
5:00 pm - 5:25 pm
DCA
-
HEL
17h 25m
2 stops
Delta Logo
6:50 am - 6:59 pm
HEL
-
DCA
19h 09m
2 stops
$772Delta
Thu, Oct 15 - Mon, Oct 19
Delta Logo
5:00 pm - 4:40 pm
DCA
-
HEL
16h 40m
2 stops
Delta Logo
7:00 am - 7:14 pm
HEL
-
DCA
19h 14m
2 stops
$779Delta
Fri, Sep 4 - Sat, Sep 12
Finnair Logo
5:24 pm - 2:15 pm
DCA
-
HEL
13h 51m
1 stop
Finnair Logo
12:35 pm - 9:29 pm
HEL
-
DCA
15h 54m
1 stop
$790Finnair
Mon, Oct 19 - Thu, Oct 22
Scandinavian Airlines Logo
12:00 pm - 1:30 am
DCA
-
HEL
30h 30m
2 stops
Scandinavian Airlines Logo
6:10 am - 11:30 pm
HEL
-
DCA
24h 20m
2 stops
$791Scandinavian Airlines
Thu, Aug 27 - Mon, Sep 7
United Airlines Logo
10:20 pm - 6:55 pm
IAD
-
HEL
13h 35m
1 stop
United Airlines Logo
6:55 am - 4:05 pm
HEL
-
IAD
16h 10m
1 stop
$797United Airlines
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Helsinki flights

Get data-powered insights and trends into flights from Washington, D.C. to Helsinki to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. to Helsinki?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. to Helsinki departing in November.

What is the cheapest month to fly from Washington, D.C. to Helsinki?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Helsinki, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. to Helsinki is May, where tickets cost $337 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $612 and $496 respectively.

How far in advance should I book a flight from Washington, D.C. to Helsinki?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to Helsinki, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. to Helsinki, you should book around 2 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$224
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Washington Dulles Airport to Helsinki

When to book flights from Washington, D.C. to Helsinki

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Helsinki based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Helsinki

  • What is the cheapest flight from Washington, D.C. to Helsinki?

    In the last 5 days, the lowest price for a flight from Washington, D.C. to Helsinki was $224 for a one-way ticket and $483 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Helsinki?

    Yes, you’ll need a passport to travel to Helsinki from Washington, D.C..

  • Which airports will I be using when flying from Washington, D.C. to Helsinki?

    Washington, D.C. has 2 major airports: Washington, D.C. Reagan-National and Washington, D.C. Dulles Intl. Helsinki-Vantaa is the only airport in Helsinki. You’ll usually find the cheapest deals if you fly from Washington Dulles Airport.

  • Which aircraft models fly most regularly from Washington, D.C. to Helsinki?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to Helsinki?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Washington, D.C. and Helsinki, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Helsinki, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Helsinki are Delta and KLM. With an average price for the route of $749 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $496 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Helsinki?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Helsinki.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Helsinki?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helsinki from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Helsinki?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helsinki with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Helsinki?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helsinki from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Washington, D.C. to Helsinki

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Helsinki. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Helsinki? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Scandinavian AirlinesOverall score based on 1815 reviews
8.0Crew
6.7Entertainment
6.7Food
7.6Boarding
7.3Comfort
Airline reviews

On time, reasonably comfortable for economy, decent food. All in all a very good experience.

10.0 ExcellentAnonymous, Jun 2026
ATL - CPH
Read more Scandinavian Airlines reviews

On time, reasonably comfortable for economy, decent food. All in all a very good experience.

Every flight got canceled or delayed. Customer service was awful.

They lost my luggage and can’t find it. My trip is ruined. Online tracking of lost luggage doesn’t work

No free Wi-Fi. I have SkyMiles but not a high status, having an account has been enough for Wi-Fi on other flights, but this one was going to charge me to use it. Also turbulence was really bad toward the end, but I didn't count this in my ratings since I know Delta cannot control the weather - it's 2026 and lack of WiFi alone is enough for a poor rating.

The stewardess was incredibly rude. The gave you only one drink with dinner.

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

The worst with the trip was the space in economy, my knees are still hurting. There was no way to control personal air by turning a knob above you, it was way to hot on both rides. During the night flight they allowed 2 people from across the aile which was narrow to sit and talk for 7 hours while also using tablets and the flashlight from their phones pointing into the row where I sat at times. They allowed people with way too large baggage to bring onboard. I paid way too much for the ticket ($1,364} for economy. Kayak misinformed me to get cancellation insurance that was only valid for a very short time (less than 12 hours) and was over one hundred dollars. Hotel booking was incorrect, I had the room booked myself at the hotel, only double or larger rooms available which I paid over 400 dollars for. I will never fly with SAS again unless there is no other alternative.

Crew members were excellent. The seat wasn’t the best as well as a food options.

5 of my 7 pieces of luggage are missing and they cant call to find out where it is. I have to fill out a form and wait for them to mail it to me in several days (if they find it). That does not work for my travel itinerary. I need my full ticket cost refunded please.

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

The small flights with Valet Luggage has a poor service

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

Repurchased food and it was moldy and expensive. But I figured it was bad luck so I purchased a cup-o-noodles, halfway through them we hit turbulence and the flight attendant was passing with the garbage, it would have been two seconds to grab it, but he was snarky grabbed someone else’s plastic cups and went to buckle up… I used the puke bags to secure the soup before it became an accessory. When he finally came around he gave me a face like a petulant child as I handed him the soup neatly wrapped in the paper then plastic bag. I watched a movie in silence as the rental or headphones was ridiculous at 4€ for those .10€ cheap plastic toys. No English subtitles on an American movie… crazy. I disliked the whinny little tourist trap and now I hope that it sinks into the ocean or erupts in a catastrophic eruption for their beloved “I live on an active volcano” pride.

The Check-in process at CDG was confusing and the crew was not helpful. But the flight was on-time and that is most important to me.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

They messed up my seat so I didn’t get the one I paid for

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

In my first flight with Air Canada we sat in the plane for 4:00pm to 6:30pm. Finally we were asked to get off the plane and we were told the flight was cancelled after 7:00pm There was o clear explanation of what was the problem. I was booked without my permission on a Delta Flight at 7:30pm that was leaving at 8:00pm and I still had to go get my luggage(my final destination was Rome with one stop in Toronto. The luggage claim for Canada was closed so had to return to finally get it on the luggage belt.. Of course I missed the Delta flight and all the next day flights were booked. I also lost what I paid for my stay in Rome because I did nt cancel in time. A complete nightmare.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Parents with permanently crying baby on board. Neither parents nor crew did anything to calm the baby. The food was extremely disappointing. Seafood stew was very, very small! Not even appetizer size! Seat had a gap in the back. Had to use a pillow to fill it.

Everything you need to know for your flight from Washington, D.C. to Helsinki

Information on your arrival and departure airports